In this Opinon article, Cornforth and Foster argue that several of the major bacterial stress responses detect ecological competition directly through competition sensing, a physiological response that detects harm caused by other cells and that evolved, at least in part, for that purpose. In support of this argument, they show that bacteriocins and antibiotics are frequently upregulated by stress responses to nutrient limitation and cell damage but not by responses to abiotic stress.
- Daniel M. Cornforth
- Kevin R. Foster